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System State Backup Failing due to Cluster writer status Failed

General discussion

I have a Windows Server 2003 enterprise edition R2 SP2. 2 node cluster one node unable to backup due to following error.

The Microsoft Volume Shadow Copy Services writer 'Cluster Service Writer' current state (VSS_WS_FAILED_AT_PREPARE_SNAPSHOT) is not valid for the current operation. 09/07/2009 21:35:36 ANS5271E A Microsoft Volume Shadow Copy Services writer is in an invalid state before snapshot initialization.

If I restart cluster service vssadmin list writers shows all counters as stable. As soon as backup is run cluster writer status failed.